Which one of the following faults causes the coffee in a Brewer to keep boiling after the brewing cycle is finished?

The fault that causes the coffee in a brewer to keep boiling after the brewing cycle is finished is typically due to a malfunctioning or faulty thermostat. If the thermostat fails to regulate the temperature properly, it may not turn off the heating element, leading to continuous boiling. Additionally, issues with the brewer's control board or switches can also result in this problem, preventing the brewer from shutting off as intended.